How does an on site assessment NVQ work? What the assessor looks for on the day

Assessor photographing a dryliner fixing plasterboard during an on-site NVQ visit

An on site assessment NVQ means the assessor comes to your site and judges your competence on the work you’re already doing. On the day they observe you, photograph the work, ask questions and collect evidence like drawings and witness statements. There’s no exam and no classroom. Across a few visits, the evidence builds until every unit is signed off and the certificate is issued.

Right, let’s get this straight.

The phrase ‘on-site assessment’ gets used a lot and explained almost never. People picture an inspector with a clipboard marking them down for a wonky joint.

Employers picture a stranger wandering round the site slowing everyone down.

Neither is what happens. So here’s the day, start to finish, from the people who do them every week.

What an on site assessment NVQ actually is

A construction NVQ is a competence qualification. It doesn’t test what you know in a room, it confirms what you can do on a job. The only way to confirm that is for a qualified assessor to see you doing it, so the assessment happens where the work is: your site.

That’s the whole model. You register, an assessor is assigned, they plan around your job and visit while you work. The evidence for each unit of the qualification comes from what they see and what you can show.

Since Industry Accreditation closed on 31 December 2024, this is the route by which experienced workers get the qualification behind a CSCS card. Blue is a Level 2 NVQ, Gold is Level 3, Black is Level 6 or 7, and all of them are assessed this way.

Before the first visit: the planning call

Nothing happens on site until your assessor knows what your site looks like.

The first conversation is a phone or video call. They’ll ask what you’re working on, how long you’ve been in the trade, what the next few weeks of the job look like and what you’ve done before. From that, they map the units of the qualification against your job.

This is where a good assessor earns their keep. A joiner on a housing site is going to hit first fix, second fix and roof carpentry naturally. A joiner on a shopfit isn’t, so the assessor plans for the gaps, maybe with photos from a previous job or a statement from a former gaffer.

You’ll also be told what to start gathering now, before anyone visits. Our post on what to do before you start your NVQ lists it.

What the assessor looks for on the day

The visit itself is mostly watching.

Your assessor arrives, signs in, does the site induction like anyone else, and finds you. Then they observe you working for a period, usually a morning or a couple of hours, depending on what’s planned. They’re looking at four things:

  • The work. Does it meet the standard for the trade? Is it plumb, level, to the drawing, to the spec? On the NVQ Level 2 Bricklaying that’s the corner and the line. On the NVQ Level 2 Painting and Decorating it’s the prep and the finish. On the NVQ Level 2 Site Carpentry it’s the fixings, the door sets and the roof.
  • The method. Did you set out properly, check the materials, follow the sequence, use the right tools? Competence is the how as well as the what.
  • Safety. PPE on, work area tidy, RAMS followed, working at height done properly. Every unit has a health and safety thread through it.
  • Understanding. They’ll ask questions as you go. Why that fixing, what would you do if the substrate was wet, how do you know that’s within tolerance. They want to hear that you know why, not just how.

They photograph the work, make notes and record which units the observation covers. Then they get out of your way.

The other evidence: it's not just observation

An observation on one day can’t cover everything, so the assessor gathers evidence from other places too.

  • Work products. Photos of jobs you’ve done, before and after. Especially work that gets covered up: insulation, first fix, footings, plasterboard before the skim.
  • Witness statements. A short signed note from your site manager or gaffer confirming what you did on a job and that it met the standard. These carry real weight.
  • Site paperwork. Drawings you worked to, RAMS, permits, job sheets, delivery notes with your name on.
  • Professional discussion. A recorded conversation where the assessor asks about your work in depth. This covers the knowledge side and any units the visits didn’t reach. If writing isn’t your thing, this is where you talk and they type.

All of it goes into your portfolio, and most of it goes in from your phone. Your assessor gives you the full list at the planning call.

What happens after the visit

Your assessor reviews everything against the standard, unit by unit. Each one is either competent or not yet competent.

‘Not yet’ means the evidence isn’t complete, not that you’ve done something wrong. They’ll tell you exactly what’s missing and the quickest way to fill it, which might be another observation on the next job, a photo from an old one or a witness statement.

The work is also checked by an internal quality assurer, which is a second qualified person making sure the assessment was fair and consistent. Once every unit is signed off, the claim goes to the awarding organisation named on your certificate, and they issue it.

How many visits it takes depends on your job and how quickly you gather evidence, not on a timetable. Some people are done in a few months, some take longer because their site doesn’t produce the evidence until later. Nobody’s clock runs out.

Who the assessor is, and what makes them qualified

People search for ‘NVQ assessor qualification’ for two reasons: they want to know who’s judging them, or they fancy doing the job themselves.

On the first, your assessor is two things. They’re occupationally competent, which means they’ve worked the trade they assess, and they hold a recognised assessor qualification, which means they’ve been trained and are checked on how they assess. A bricklayer assesses bricklayers. A site manager assesses site managers.

On the second, DMR assesses construction NVQs. We don’t deliver assessor training. If you’re a tradesperson who’s interested in becoming an assessor, the recognised assessor award is the starting point, and it’s worth having a trade qualification and plenty of time on the tools behind you first.

How it fits around a working site: for employers

If you run the firm, here’s how much a visit disrupts the site: almost not at all.

The assessor inducts like any visitor, watches one person for part of a shift and leaves. Nobody’s pulled off the job. The paperwork they need is stuff you already have. The one thing we’d ask is that a supervisor is willing to sign a witness statement, which takes five minutes.

What you get is a workforce you can prove, which is what a client’s competence check, CDM 2015 Regulation 8 and the Building Safety Act are all really asking for. And with several people on the same site, one visit can cover more than one candidate.

Come have a chat with us

If you’ve been doing the job for years and want it on paper without a classroom in sight, ring us on 01942 673047. We’ll tell you which level fits, how the visits would run around your site, and how to check your eligibility for funding. We’ve been delivering the on-site assessment NVQ since 2013 and our assessors are all trade first.

Frequently asked questions

What happens during an NVQ on-site assessment?

Your assessor visits your site, inducts like any visitor and observes you working for a period, usually part of a shift. They look at the quality of the work, your method, safety and your understanding, asking questions as you go. They photograph the work, record which units it covers and then leave you to get on with the job.

It depends on your trade, your job and how quickly you gather the other evidence. A single observation rarely covers every unit, so most people have a small number of visits, with photos, witness statements and a recorded discussion filling the gaps. Your assessor plans the visits around what’s coming up on your site.

No. The NVQ is judged entirely on evidence of competence from real work: observation, photos, site paperwork, witness statements and a recorded professional discussion. The only test in the wider process is the CITB Health, Safety and Environment test, which is needed for the CSCS card and is taken separately at a test centre.

Two things. They must be occupationally competent, meaning they have worked in the trade they assess, and they must hold a recognised assessor qualification so their judgements are consistent and checked. Every assessment is also reviewed by an internal quality assurer. DMR assesses construction NVQs but does not deliver assessor training.

Very little. The assessor watches one person for part of a shift and does not pull anyone off the job. The paperwork they need is site documentation that already exists, plus a short witness statement from a supervisor. Where several people on one site are registered, a single visit can often cover more than one of them.